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Series PG Gas Pressure/Differential Pressure Switch

Gas pressure/differential pressure switch, range 1-30" water (.25-7.47 kPa), max. deadband 1.3" w.c. (0.32 kPa), SPST mercury switch, closes on increase.

$910.00

Item# PG-3-P1

In stock

Lead Time (If not in stock): 2 weeks
Gas pressure/differential pressure switch, range 1-30" water (.25-7.47 kPa), max. deadband 1.3" w.c. (0.32 kPa), SPST mercury switch, closes on increase. PG-3-P1 PG-3-P1
  • Clear easy-to-read scale and external set point adjustment simplifies operation and trouble shooting
  • Large diaphragm provides accuracy for precise control
  • Multiple switching options meet the design of applications

PG-3-P1 Model Options

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Edit these specs to order a different model. Not all combinations are valid. Options compatible with previous selections will be in bold.

*Highlighted options are not compatible. Please select a different combination.

Switch Type
Pressure Range
Pressure Type
Pressure Port Size
Pressure Port Type
Deadband Range
Deadband
Warning WARNING: This product can expose you to , a chemical known to the State of California to cause . For more information go to www.P65Warnings.ca.gov.


  • Agency Approvals UL, FM for mercury switch models. UL only on snap switch models.
  • Compliance: UL
  • Conduit Connection: 7/8" (22.23 mm) hole for 1/2" (12.7 mm) conduit hub.
  • Deadband: See Ordering page.
  • Electrical Connections: Screw type.
  • Electrical Rating: See Ordering page.
  • Enclosure Rating: General purpose. Weatherproof and explosion-proof optional.
  • Mounting Orientation: Vertical.
  • Pressure Limit: Single Pressure Use on High Side: sustained pressure: 15 psig (1.0 bar); surge limit: 20 psig (1.4 bar). Differential Pressure Use: sustained pressure, range P1: 2 psig (.14 bar); sustained pressure, range P2: 10 psig (0.7 bar).
  • Process Connection: 1/2" male NPT and 1/8" female NPT used for single positive pressure or high differential pressure
  • Repeatability: ±1% of full range
  • Set Point Adjustment: External screw.
  • Switch Type: See Ordering page.
  • Temperature Limits: -10 to 180°F (-23 to 82°C).
  • Weight: 4.5 lb (2 kg).
  • Wetted Materials: Fairprene, brass, steel, and aluminum.

Large sensitive diaphragm and reliable, time proven mechanical design are combined in Series PG Gas Pressure/Differential Pressure Switches. For use with air and other compatible gases, they feature excellent ±1% of full scale repeatability, clear easy-to-read scale and convenient external setpoint adjustment.

Application flexibility is assured by a large variety of switching options including SPST, SPDT, DPST and DPDT; opening or closing on increasing pressure, vacuum or differential. PR and PRL models add manual reset operation on increasing or decreasing pressure. Mercury switches or hermetically sealed snap switches are available where high humidity would be a problem. If vibration or other factors preclude the use of mercury, snap switches can be provided. Standard housing is NEMA 1. Optional enclosures can be supplied for weather resistant requirements.

Product Applications

  • Natural, manufactured or LP gas applications
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